Fluorite
Calcium Fluoride (CaF2)
mineral
Category
Anthropic Metallic Specimen
Browse anthropic metallic specimen specimens identified by the Rock Identifier community.
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold) in Matrix
Iron Sulfide (FeS2)
mineral
Man-made Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating/dye
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Peacock Ore (Chalcopyrite)
Chalcopyrite (CuFeS2)
mineral
Not a geological specimen
N/A (man-made object)
N/A
Botryoidal Hematite (Kidney Ore)
Hematite (Fe2O3)
Mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Basalt (River Pebble)
Extrusive mafic igneous rock
igneous
Gold Nugget
Native Gold (Au)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Sunstone
Oligoclase (Plagioclase Feldspar) / (Ca,Na)(Al,Si)4O8
mineral
Basalt (River Rock Cobble)
Extrusive mafic igneous rock
igneous
Green Aventurine
Quartzite (variety Aventurine) with Fuchsite inclusions (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Nuummite
Nuummite (Orthoamphibole rock / Anthophyllite-Gedrite blend)
metamorphic
Basalt River Pebble
Basalt
igneous
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Sunstone
Aventurine Feldspar (composition: (Ca,Na)((Al,Si)2Si2O8))
mineral
Pyrite
Iron disulfide (FeS2)
mineral
Basalt (Vesicular)
Extrusive mafic igneous rock; primarily (Ca, Na)(Mg, Fe, Al)(Si, Al)2O6 with (Ca, Na)(Al, Si)4O8
igneous
Opalite
Synthetic Opalised Glass
mineraloid (synthetic)
Iridium sand or Osmium-Iridium nugget
Iridosmine / Osmiridium (Platinoid grouping)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Basalt River Pebble
Basalt
igneous
Pyrite (Pseudomorph)
Iron Sulfide (FeS2)
mineral
Basalt
Basalt (Extrusive Igneous Rock)
igneous
Schorl (Black Tourmaline) in Quartz/Feldspar Matrix
NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Black Sapphire (Basaltic Blue Sapphire)
Corundum (Al2O3)
mineral
Basalt River Stone
Basalt (Mafic volcanic rock)
igneous
Gabbro (River Cobble)
Gabbro (mafic intrusive rock)
igneous
Basalt (Crushed Roadstone)
Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
igneous
Limonite Geode (Ironstone Concretion)
FeO(OH)·nH2O (Hydrated Iron Oxide)
sedimentary
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Sunstone
Plagioclase Feldspar (Na,Ca)(Si,Al)4O8
mineral